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Patent Searching and Data


Matches 1,901 - 1,950 out of 10,798

Document Document Title
JP3666420B2
To provide a brush holder for a dynamo-electric machine, which suppresses the noise caused by vibration, by improving the attenuation properties to the vibration of a brush. This brush holder is equipped with a brush retainer 9 which sto...  
JP3661784B2
To prevent an increase in lead-wire fitting resistance in a metal graphite brush that contains a metallic-sulfide solid lubricant but does not contain lead. A brush body 4 of the metal graphite brush 2 is formed of a commutator side memb...  
JP3662576B2
To provide an excellent and durable brush holder which brings about high device performance and a long brush life and brings about a smoother brush contact and optimum brush abrasion during an operation of the device. A cylindrical sleev...  
JP3660598B2
To use low-cost materials, and to improve the effect of heat dissipation generated by a brush, while keeping a production cost low. This brush-holding device or a miniature motor is comprised of a brush with which a brush-fitting part is...  
JP3661232B2
To prevent the penetration of water into a power source section and to reduce the cost of a brush holder by forming the base of a brush holder by baking a molded resin and providing walls around sections for passing bolts which hold a mo...  
JP3660234B2
To provide a motor component manufacturing method which enables reduction in scale of facilities, and reduction in the manufacturing cost of motor components. For terminals 30a, 30b, male terminals 36 and female terminals 32 are formed a...  
JP2005516568A
A device is proposed for suppressing radio interference in an electrical commutator machine, in particular a DC motor (10), having a rotor (12) supplied via brushes (14a, b) and having an interference suppression circuit (16) that has at...  
JP3654312B2
To assemble even a brush assembly employing a long brush easily in a short time. When a brush assembly ASSY 7 employing a long brush 18 is assembled, a brush support 27 is inserted previously into the tubular part of brush ASSY 7 in orde...  
JP2005137193A
To provide a short-circuiting member, in which the extension of an axial length is suppressed and kinds of components are not increased, a commutator, and to provide a method for manufacturing the short-circuiting member.The short circui...  
JP3651785B2
To provide a disc-shaped rectifier capable of facilitating removal of foreign matters more significantly than in prior art. A gap 23, between commutator pieces 21, 21 of the commutator 2 having a disc-shaped rectifying surface, is formed...  
JP2005130583A
To provide female type terminal fittings in which a drawing yield strength of a plate-like male terminal is improved by eliminating an antinomy of strengthening of an elastic holding force and enlarging of a contact area.The female type ...  
JP2005130617A
To provide a brush motor which can elongate its life by improving the rectification state and reducing the deterioration of sliding characteristics at a contact face between a brush and a commutator caused by spark.The brush motor is equ...  
JP2005130695A
To provide an oil throw and a recovery structure which is integral with a commutator, which are used in a DC motor.This commutator includes a body 112, having ends mutually located on opposite sides, commutator bars 118 attached to a per...  
JP2005130618A
To keep the conductivity at an electric contact point favorably, with simple configuration.This electric apparatus is constituted so that good lubricating action may be kept for a long period even under high-temperature environment, whil...  
JP3649710B2
To provide a sparkless wheel allowing increase of a contact area to a traveling body, and capable of substantially restraining generation of a spark. On the circumference of this rotatable wheel capable of collecting a current, carbon fi...  
JP3646175B2
To connect the conductive terminal of a gear case cover side with the conductive terminal of a motor case side surely and electrically without the generation of wrong conduction of mutual conductive terminals, even if a rust, oil and fat...  
JP2005117811A
To provide a commutator reduced in the formation of a step between commutator pieces that is formed when an overcurrent is generated between the commutator piece and a brush, when a commutator motor for use in an electric tool is restrai...  
JP3642563B2
To reduce variation in performance of a motor by making a shape of a lead wire (pigtail) throughout the manufacturing process of the motor. A lead wire 3 comprising a bundle of a plurality of conductors such as a stranded copper wire, et...  
JP3641238B2
To provide a brush holding device capable of making a brush abut on a commutator without using assembling/entering operation of an armature, at a lower cost. A brush holding device 30 comprises a brush 31, a brush holder 32, a torsion sp...  
JP3636700B2
To cope with flattening and reduction in size of an electromagnetic induction machine and allow greater output and mass-production thereof with a reduction in cost as well. The structure includes a coil disc 1 where conductor patterns 12...  
JP2005086850A
To provide a carbon brush of a long lifetime using graphite particle filler by forming a filler composition of the graphite particle filler uniformly.The carbon brush is controlled so that an integrated value of graphite particles, in wh...  
JP3633413B2
To provide a rotary connector device for an electrical equipment which is installed at a steering wheel and uses comparatively a large amount of electric current. The rotary connector assembly is equipped with the followings; a stator ho...  
JP2005077421A
To provide a photoreceptive drum which hinders from shaving of a drum shaft, occurrence of unpleasant noise, etc., and whose cost is low and life is long.The photosensitive drum device 10: includes a cylindrical photoreceptive drum 11; a...  
JP3631990B2
To provide a slip ring which has a new structure, a low profile, and a small size, and to provide a motor integrated with the slip ring. A slip ring 40 (6-pole type) comprises a plurality of thin film patterns which are conductive rings ...  
JP2005073471A
To eliminate the rattling of a commutator terminal of a small-sized motor, relating to a structure of a rotor, in particular, including a commutator.The terminal 13 is fixed by making a projection formed on part of the terminal 13 of a c...  
JP2005065474A
To provide a slim generator capable of obtaining a constant output, facilitating system linkage, preventing the effects of power failure from spreading as a cogeneration auxiliary device, if the power failure occurs, eliminating polarity...  
JP2005060842A
To provide a metal coating method for a graphite disk or a graphite block whereby good material separation between a graphite disk or a graphite block material and a high-metal-content layer material is guaranteed by removing the boundar...  
JP3627906B2  
JP3627700B2  
JP2005051946A
To accurately and efficiently manufacture a carbon brush.One ends of brush bodies 10 that are transferred in a row are processed for embedding of lead wires. After that, the processed brush bodies 10 are held and moved at a prescribed di...  
JP3622118B2
The attachable commutator is produced by overmoulding on electrically conducting elements, and comprises a first cylindrical part (10a, 10b, 20, 22) with slip rings (10a, 10b), a second part (34, 14a, 14b) with connection elements for a ...  
JP3623489B2
To provide a drum holding structure having no possibility of poor assembly. A holder 31 is provided with: a drum holding section 36 for holding a photoreceptor drum 11 at its one end; a housing recessed part 33 for housing an electrode c...  
JP2005045872A
To prevent the pressing load of a brush from varying by locking the brush with a simple means which facilitates fixing and removal of a spring stopper.A brush holder 7 in a motor for holding a brush 4 supplying a current to a commutator ...  
JP2005504497A
The invention relates to a commutation device for an electrical machine, especially for a D.C. motor for use in motor vehicles. Said device comprises a commutator with a plurality of commutator bars insulated from one another and dispose...  
JP2005504423A
The invention relates to a brush holder for an electrical machine comprising a commutator (10), especially for a d.c. motor in motor vehicles. Said brush holder comprises a tube (15), a brush (17) which consists of two brush elements (21...  
JP2005033847A
To obtain the commutator of a miniature motor in which a wide groove space of a slit is ensured with no variation.An edge removing space 35 is provided at a corner part being formed by the end face part on the end face side of the curlin...  
JP2005027381A
To provide an earthing device of rolling stock for bypassing a current in order to prevent electrolytic corrosion due to a current flowing into a bearing section when a current taken into from the pantograph of a rolling stock is fed to ...  
JP3613773B2
To facilitate the replacement of a brush by passing the projection of a brush can into the narrow opening of a recessed through hole, and connecting a terminal where a lead wire is connected, and not passing this from the narrow opening ...  
JP3613872B2
To prevent the break of a pig tail by maintaining the insulation between a commutator and each segment with simple constitution. A commutator made of copper 40, which is divided into eight segments 41, is provided on the side of the shaf...  
JP2005020796A
To provide the brush for a rotating machine which improves a sliding performance of a brush with a simple constitution.The brush 1 for the rotating machine includes a through hole 3 formed perpendicularly from the sliding surface of the ...  
JP3612264B2
Disclosed is a light transmitting apparatus between a rotor and a stator for transmitting data. The apparatus comprises a light-emitting element arranged in a position of a first reference radius of the rotor for emitting a light beam in...  
JP2005012982A
To solve problems that abrasion particles caused to occur by the sliding of brushes on a rotary portion infiltrate into a brush holder and accumulate between the holder and the brushes, that free sliding property of the brushes is obstru...  
JP3610049B2  
JP2005006479A
To provide a sliding contact material having a long lifetime, even for high-speed sliding under a high current density condition and to achieve a long lifetime of a commutator motor, an electrical apparatus and a compressor using the sli...  
JP3607928B2
In a rotary joint A including an electric signal slip ring 31 for passing different electric signals between a stator 1 and a rotor 6, for the purpose of stable transmission of electric signals in the electric signal slip ring 31, statio...  
JP3607929B2
In a rotary joint A including a power slip ring 21 and an electric signal slip ring 31 both for passing electricity between a stator 1 and a rotor 6, for the purpose of avoiding penetration of water droplets into the surroundings of the ...  
JP2004364414A
To provide an electric motor which can reduce magnetic sound.This motor is provided with brushes 51a-51d, with the centrifugal centers of brushes 51c and 51d on negative load side being slid x° counterclockwise from the circumferential ...  
JP2004364415A
To prevent the deformation of a plate due to the heating of a brush without increasing its parts count while making the plate of resin material low in heat resistance, and to easily and surely prevent the widening of the interval between...  
JP2004344247A
To provide a mechanism for transmitting ultrasonic receiving signals between a rotating part and a non-rotating part of an ultrasonic probe, capable of preventing wear caused by sliding as much as possible while bringing the rotating par...  
JP2004535146A
The invention concerns a commutator (22; 22a; 22b) for a multi-pole commutator motor (14) having at least four stator poles (16-19) and armature coils (31-42) interacting with them that are electrically interconnected with two commutator...  

Matches 1,901 - 1,950 out of 10,798